BPM (time service)#BPC low-frequency service

BPC is the call sign of a time signal transmitter in China. It is operated since April 25, 2002, transmitting on the frequency 68.5 kHz. Its signal allows control of radio clocks, but the communication protocol is proprietary. The transmitter is located near Shangqiu.

Beta (time signal) Longwave DCF77 HBG (time signal) JJY Time from NPL Allouis longwave transmitter WWV (radio station) BPM (time service) CHU (radio station) Y3S RWM Cagigal Observatory
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